User Review: Marmot Men's Pinnacle
Temperature Rating: 15 F
Price Paid: $249
Wow! I can't say enough about this bag. Camped at 7000 ft in Death Valley in December on the slopes of Telescope peak during a clear night. Temps dropped into the single digits and all I had on were my thermals and a pair of light weight socks. The bag is rated 10 15 F but that's pretty conservative, I think it's good to around 5 F actually.
I was on a thermarest (which probably helped) but I never once was cold in this bag. My partner, who is from Siberia, froze all night in a syn bag. I was chilled initially, but the cinching up the draft tube (a necessary feature) stopped that. The bag compresses extremely well - I'm able to squeeeze it into the bottom of a Gregory Advent Pro daypack. The only downside is it was a little difficult to get out of in a hurry when a black bear approached my tent on a separate hike, but that's another story.